Bad gas from Speedway causes misfiring

Jun 24, 2016 | 03:57 PM

cooperlee

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Joined: Nov 2013

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C63

Bad gas from Speedway causes misfiring

Filled up with speedway last night. This morning car started to idle rough, cell light flashing then stayed solid, and car started to sputter and lost of power. Drove the day down to half a tank and filled up with new gas from another station. Car is still running rough and cel light staying on. It appears to be bad gas from Speedway as car ran perfect prior to fill up. Has anyone experienced similar symptoms from Speedway or bad gas?

Jun 26, 2016 | 11:37 PM

ecohen2

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I had an issue with a fuel rail that created the same symptoms..

Jun 28, 2016 | 03:38 PM

cooperlee

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C63

Looks like bad gas. Never go to Speedway (previously as Hess).

Jun 30, 2016 | 02:02 AM

talarv

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2013 C63 AMG Sedan

Quote:

Originally Posted by ecohen2

I had an issue with a fuel rail that created the same symptoms..

Symptoms include a ticking sound under acceleration but not at idle?

What was the fix?

Jun 30, 2016 | 09:50 AM

ArmoE55

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2006 E55

Call me ****(or a brand *****), but I only pump at Exxon or Shell. I make sure I plan my route or have enough to get to an Exxon or Shell on drives.

I've had bad gas issues on previous cars with BP, Sunoco, and Citgo.

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